320 lines
13 KiB
PHP
320 lines
13 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator;
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/**
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* Stores the validator's state during validation.
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*
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* For example, let's validate the following object graph:
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*
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* <pre>
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* (Person)---($firstName: string)
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* \
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* ($address: Address)---($street: string)
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* </pre>
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*
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* We validate the <tt>Person</tt> instance, which becomes the "root" of the
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* validation run (see {@link getRoot}). The state of the context after the
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* first step will be like this:
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*
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* <pre>
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* (Person)---($firstName: string)
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* ^ \
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* ($address: Address)---($street: string)
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* </pre>
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*
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* The validator is stopped at the <tt>Person</tt> node, both the root and the
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* value (see {@link getValue}) of the context point to the <tt>Person</tt>
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* instance. The property path is empty at this point (see {@link getPropertyPath}).
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* The metadata of the context is the metadata of the <tt>Person</tt> node
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* (see {@link getMetadata}).
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*
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* After advancing to the property <tt>$firstName</tt> of the <tt>Person</tt>
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* instance, the state of the context looks like this:
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*
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* <pre>
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* (Person)---($firstName: string)
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* \ ^
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* ($address: Address)---($street: string)
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* </pre>
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*
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* The validator is stopped at the property <tt>$firstName</tt>. The root still
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* points to the <tt>Person</tt> instance, because this is where the validation
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* started. The property path is now "firstName" and the current value is the
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* value of that property.
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*
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* After advancing to the <tt>$address</tt> property and then to the
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* <tt>$street</tt> property of the <tt>Address</tt> instance, the context state
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* looks like this:
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*
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* <pre>
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* (Person)---($firstName: string)
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* \
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* ($address: Address)---($street: string)
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* ^
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* </pre>
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*
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* The validator is stopped at the property <tt>$street</tt>. The root still
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* points to the <tt>Person</tt> instance, but the property path is now
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* "address.street" and the validated value is the value of that property.
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*
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* Apart from the root, the property path and the currently validated value,
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* the execution context also knows the metadata of the current node (see
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* {@link getMetadata}) which for example returns a {@link Mapping\PropertyMetadata}
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* or a {@link Mapping\ClassMetadata} object. he context also contains the
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* validation group that is currently being validated (see {@link getGroup}) and
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* the violations that happened up until now (see {@link getViolations}).
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*
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* Apart from reading the execution context, you can also use
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* {@link addViolation} or {@link addViolationAt} to add new violations and
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* {@link validate} or {@link validateValue} to validate values that the
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* validator otherwise would not reach.
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*
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* @author Bernhard Schussek <bschussek@gmail.com>
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*
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* @deprecated since version 2.5, to be removed in 3.0.
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* Use {@link Context\ExecutionContextInterface} instead.
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*/
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interface ExecutionContextInterface
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{
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/**
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* Adds a violation at the current node of the validation graph.
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*
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* Note: the parameters $invalidValue, $plural and $code are deprecated since version 2.5 and will be removed in 3.0.
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*
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* @param string $message The error message
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* @param array $params The parameters substituted in the error message
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* @param mixed $invalidValue The invalid, validated value
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* @param int|null $plural The number to use to pluralize of the message
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* @param int|null $code The violation code
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*/
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public function addViolation($message, array $params = array(), $invalidValue = null, $plural = null, $code = null);
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/**
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* Adds a violation at the validation graph node with the given property
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* path relative to the current property path.
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*
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* @param string $subPath The relative property path for the violation
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* @param string $message The error message
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* @param array $parameters The parameters substituted in the error message
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* @param mixed $invalidValue The invalid, validated value
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* @param int|null $plural The number to use to pluralize of the message
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* @param int|null $code The violation code
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*
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* @deprecated since version 2.5, to be removed in 3.0.
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* Use {@link Context\ExecutionContextInterface::buildViolation()}
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* instead.
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*/
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public function addViolationAt($subPath, $message, array $parameters = array(), $invalidValue = null, $plural = null, $code = null);
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/**
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* Validates the given value within the scope of the current validation.
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*
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* The value may be any value recognized by the used metadata factory
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* (see {@link MetadataFactoryInterface::getMetadata}), or an array or a
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* traversable object of such values.
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*
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* Usually you validate a value that is not the current node of the
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* execution context. For this case, you can pass the {@link $subPath}
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* argument which is appended to the current property path when a violation
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* is created. For example, take the following object graph:
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*
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* <pre>
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* (Person)---($address: Address)---($phoneNumber: PhoneNumber)
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* ^
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* </pre>
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*
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* When the execution context stops at the <tt>Person</tt> instance, the
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* property path is "address". When you validate the <tt>PhoneNumber</tt>
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* instance now, pass "phoneNumber" as sub path to correct the property path
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* to "address.phoneNumber":
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*
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* <pre>
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* $context->validate($address->phoneNumber, 'phoneNumber');
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* </pre>
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*
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* Any violations generated during the validation will be added to the
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* violation list that you can access with {@link getViolations}.
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*
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* @param mixed $value The value to validate
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* @param string $subPath The path to append to the context's property path
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* @param null|string|string[] $groups The groups to validate in. If you don't pass any
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* groups here, the current group of the context
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* will be used.
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* @param bool $traverse Whether to traverse the value if it is an array
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* or an instance of <tt>\Traversable</tt>
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* @param bool $deep Whether to traverse the value recursively if
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* it is a collection of collections
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*
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* @deprecated since version 2.5, to be removed in 3.0.
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* Use {@link Context\ExecutionContextInterface::getValidator()}
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* instead.
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*/
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public function validate($value, $subPath = '', $groups = null, $traverse = false, $deep = false);
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/**
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* Validates a value against a constraint.
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*
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* Use the parameter <tt>$subPath</tt> to adapt the property path for the
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* validated value. For example, take the following object graph:
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*
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* <pre>
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* (Person)---($address: Address)---($street: string)
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* ^
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* </pre>
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*
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* When the validator validates the <tt>Address</tt> instance, the
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* property path stored in the execution context is "address". When you
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* manually validate the property <tt>$street</tt> now, pass the sub path
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* "street" to adapt the full property path to "address.street":
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*
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* <pre>
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* $context->validate($address->street, new NotNull(), 'street');
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* </pre>
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*
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* @param mixed $value The value to validate
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* @param Constraint|Constraint[] $constraints The constraint(s) to validate against
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* @param string $subPath The path to append to the context's property path
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* @param null|string|string[] $groups The groups to validate in. If you don't pass any
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* groups here, the current group of the context
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* will be used.
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*
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* @deprecated since version 2.5, to be removed in 3.0.
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* Use {@link Context\ExecutionContextInterface::getValidator()}
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* instead.
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*/
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public function validateValue($value, $constraints, $subPath = '', $groups = null);
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/**
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* Returns the violations generated by the validator so far.
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*
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* @return ConstraintViolationListInterface The constraint violation list
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*/
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public function getViolations();
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/**
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* Returns the value at which validation was started in the object graph.
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*
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* The validator, when given an object, traverses the properties and
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* related objects and their properties. The root of the validation is the
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* object from which the traversal started.
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*
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* The current value is returned by {@link getValue}.
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*
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* @return mixed The root value of the validation
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*/
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public function getRoot();
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/**
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* Returns the value that the validator is currently validating.
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*
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* If you want to retrieve the object that was originally passed to the
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* validator, use {@link getRoot}.
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*
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* @return mixed The currently validated value
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*/
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public function getValue();
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/**
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* Returns the metadata for the currently validated value.
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*
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* With the core implementation, this method returns a
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* {@link Mapping\ClassMetadata} instance if the current value is an object,
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* a {@link Mapping\PropertyMetadata} instance if the current value is
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* the value of a property and a {@link Mapping\GetterMetadata} instance if
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* the validated value is the result of a getter method.
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*
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* If the validated value is neither of these, for example if the validator
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* has been called with a plain value and constraint, this method returns
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* null.
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*
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* @return MetadataInterface|null the metadata of the currently validated
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* value
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*/
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public function getMetadata();
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/**
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* Returns the used metadata factory.
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*
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* @return MetadataFactoryInterface The metadata factory
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*
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* @deprecated since version 2.5, to be removed in 3.0.
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* Use {@link Context\ExecutionContextInterface::getValidator()}
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* instead and call
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* {@link Validator\ValidatorInterface::getMetadataFor()} or
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* {@link Validator\ValidatorInterface::hasMetadataFor()} there.
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*/
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public function getMetadataFactory();
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/**
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* Returns the validation group that is currently being validated.
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*
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* @return string The current validation group
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*/
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public function getGroup();
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/**
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* Returns the class name of the current node.
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*
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* If the metadata of the current node does not implement
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* {@link ClassBasedInterface} or if no metadata is available for the
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* current node, this method returns null.
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*
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* @return string|null The class name or null, if no class name could be found
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*/
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public function getClassName();
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/**
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* Returns the property name of the current node.
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*
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* If the metadata of the current node does not implement
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* {@link PropertyMetadataInterface} or if no metadata is available for the
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* current node, this method returns null.
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*
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* @return string|null The property name or null, if no property name could be found
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*/
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public function getPropertyName();
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/**
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* Returns the property path to the value that the validator is currently
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* validating.
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*
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* For example, take the following object graph:
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*
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* <pre>
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* (Person)---($address: Address)---($street: string)
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* </pre>
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*
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* When the <tt>Person</tt> instance is passed to the validator, the
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* property path is initially empty. When the <tt>$address</tt> property
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* of that person is validated, the property path is "address". When
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* the <tt>$street</tt> property of the related <tt>Address</tt> instance
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* is validated, the property path is "address.street".
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*
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* Properties of objects are prefixed with a dot in the property path.
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* Indices of arrays or objects implementing the {@link \ArrayAccess}
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* interface are enclosed in brackets. For example, if the property in
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* the previous example is <tt>$addresses</tt> and contains an array
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* of <tt>Address</tt> instance, the property path generated for the
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* <tt>$street</tt> property of one of these addresses is for example
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* "addresses[0].street".
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*
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* @param string $subPath Optional. The suffix appended to the current
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* property path.
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*
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* @return string The current property path. The result may be an empty
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* string if the validator is currently validating the
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* root value of the validation graph.
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*/
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public function getPropertyPath($subPath = '');
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}
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